package les.projeto;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class FileExplorer extends ListActivity {

	private List<String> item = null;
	private List<String> path = null;
	private String root="/";
	private TextView myPath;
	private String fileChosen = "";
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
	    super.onCreate(savedInstanceState);
	    setContentView(R.layout.file_explorer);
	    myPath = (TextView)findViewById(R.id.path);
	    getDir(root + "/sdcard");

	}
	
	private void readFile(String caminho)  {
	    Import imp = new Import(FileExplorer.this, caminho);
		imp.readFile();
	}

	private void getDir(String dirPath)	{
		myPath.setText("Location: " + dirPath);
		item = new ArrayList<String>();
		path = new ArrayList<String>();
	
		File f = new File(dirPath);
		File[] files = f.listFiles();
	
		if(!dirPath.equals(root)) {
			item.add(root);
			path.add(root);
			item.add("../");
			path.add(f.getParent());
		}
	
		for(int i=0; i < files.length; i++) {
			File file = files[i];
			path.add(file.getPath());
			if(file.isDirectory())
				item.add(file.getName() + "/");
	       else
	    	   item.add(file.getName());
		}

		ArrayAdapter<String> fileList = new ArrayAdapter<String>(this, R.layout.row, item);
		setListAdapter(fileList);
	}
	
	@Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
		final File file = new File(path.get(position));
		if (file.isDirectory()){
			if(file.canRead())
				getDir(path.get(position));
			else {
				new AlertDialog.Builder(this)
				.setIcon(R.drawable.icon)
				.setTitle("[" + file.getName() + "] folder can't be read!")
				.setPositiveButton("OK",  new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int which) {}
				}).show();
			}
		} else {
			//IMPLEMENTAR "PEGA ARQUIVO AQUI"
			new AlertDialog.Builder(this)
			.setIcon(R.drawable.icon)
			.setTitle("[" + file.getName() + "]")
			.setNegativeButton("Cancelar", new DialogInterface.OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {
					dialog.cancel();
				}
			})
			.setPositiveButton("Escolher", new DialogInterface.OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {
					fileChosen = file.getAbsolutePath();
					System.out.println(fileChosen);
					readFile(fileChosen);
				}
			}).show();
		}
	}
	
	@Override
	public void onBackPressed() {
	       Intent trocatela = new Intent(FileExplorer.this, ProjetoLESActivity.class);
	       FileExplorer.this.startActivity(trocatela);
	       FileExplorer.this.finish();	        		 
	       return;
	}
}